AccuPrep GMO DNA Extraction Kit works on the principle that DNA, In the presence of chaotropic salt, binds to glass fibers fixed in a column. Proteins and other contaminants are removed during washing steps, and the DNA is isolated and eluted in the final elution step. The process does not require the use of organic solvents or ethanol precipitation step; therefore, it is ideal for safe and convenient extraction DNA from a variety of botanical sources such as beans and corns.